| details |
Late Riphean |
Vendian |
Ghana |
Veis,A.F. et al. Upper Precambrian microfossils of West Africa, Ghana |
1990 |
| details |
Riphean |
Vendian |
Russia(Taymyr) |
Veis,A.F. et al. Riphean and Vendian microfossils from the Anabarskogo Massive |
1992 |
| details |
Ludlovian |
Siedlce |
Poland |
Stempien,M. Ordovician and Silurian acritarchs of the Niestachow Sandstone Formation (Gory Swietokrzyskie Mountains) |
1990 |
| details |
Middle Cambrian |
Ordovician |
USSR(Baltic) |
Bagdasaryan,L.L. The significance of microphytofossils in the solving of some problems in petroleum geology. (In: Mikrofitofossilii v neftyanoi geologii. N. A. Timoshina, editor) |
1980 |
| details |
Late Riphean |
Ordovician |
USSR(Bashkir ASSR) |
German,T.N. et al. Systematic descriptions of microfossils. (In: Precambrian Microfossils of the USSR. T.V.Yankauskas, editor) |
1989 |
| details |
Precambriam |
Ordovician |
Russia(Buryatia) |
Butov,Y.P. et al. Sagansairskaya Suita - Etalon Pozdnepaleozoisko - Mezozoiskoi Molassy Buryatskogo Vostochogo Sayana. |
2001 |
| details |
Early Ashgillian |
Middle Ashgillian |
Canada(Anticosti Island) |
Jacobson,S.R. et al. Acritarch biostratigraphy of the Dicellograptus complanatus graptolite zone from the Vaureal form Ation, (Ashgillian), Anticosti Island, Quebec, Canada. |
1985 |
| details |
Late Cambrian |
Llanvirnian |
France(Lot-et-Garonne) |
Baudelot,S. et al. Paleozoic basins hidden under the Aquitaine: Micropaleontological study of core collected during petroleum investigations. (In: Program of deep geology of France first phase of investigation-1983-1984) |
1984 |
| details |
Tremadocian |
Llandoverian |
Iran |
Mehrjerdi,H. Palynostratigraphy and palaeobiogeography of a Lower Palaeozoic sequence in the type-section of Shirgesht Formation, Northern Tabas City, East-Central Iran. |
2001 |
| details |
Middle Arenigian |
Llandeilian |
Australia(W.Australia) |
Combaz,A. et al. Palynostratigraphy of the Ordovician from some boreholes in the Canning Basin, Western Australia. |
1972 |
| details |
Middle Proterozoic |
Late Proterozoic |
Greenland |
Samuelsson,J. et al. Organic-walled microfossils from the Proterozoic Thule Supergroup, northwest Greenland. |
1999 |
| details |
Middle Ordovician |
Late Ordovician |
Estonia |
Paalits,I. Biostratigraphy: Acritarchs |
1990 |
| details |
Middle Llandoverian |
Late Llandoverian |
USSR(Krasnoyarsk Kray) |
Sheshegova,L.I. The acritarchs of the Silurian of the northern Siberian Platform |
1984 |
| details |
Middle Llandoverian |
Late Llandoverian |
USSR(Siberia) |
Zaslavskaya,N.M. et al. Silurian microfossils of the North-Western Siberian Platform. (In: Problems of Modern Palynology. A.F.Chlonova, editor) |
1984 |
| details |
Llandoverian |
Late Gothlandian |
USSR(Belorussian SSR) |
Piskun,L.V. Palaeontologic characteristics of Silurian deposits of the Brest Depression. (In: Microfossils USSR. T.F.Vozzhennikova et al, editors) |
1974 |
| details |
Middle Bathonian |
Late Bathonian |
France(Aquitaine) |
Dupin,F. Two new species of dinoflagellates of the Jurassic of Aquitaine. |
1968 |
| details |
Emsian |
Givetian |
W.Germany(Rhineland) |
Tiwari,R.S. et al. Palynological studies in the Lower and Middle Devonian of the Prum Syncline, Eifel (Germany). |
1975 |